EP0333545A1 - Pflug mit Schnittbreitenverstelleinrichtung - Google Patents

Pflug mit Schnittbreitenverstelleinrichtung Download PDF

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Publication number
EP0333545A1
EP0333545A1 EP89400574A EP89400574A EP0333545A1 EP 0333545 A1 EP0333545 A1 EP 0333545A1 EP 89400574 A EP89400574 A EP 89400574A EP 89400574 A EP89400574 A EP 89400574A EP 0333545 A1 EP0333545 A1 EP 0333545A1
Authority
EP
European Patent Office
Prior art keywords
articulation
arm
point
coupling device
plowing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89400574A
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English (en)
French (fr)
Inventor
Daniel Bonnel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHARRUES BONNEL Ste
Original Assignee
CHARRUES BONNEL Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHARRUES BONNEL Ste filed Critical CHARRUES BONNEL Ste
Publication of EP0333545A1 publication Critical patent/EP0333545A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B15/00—Elements, tools, or details of ploughs
    • A01B15/14—Frames
    • A01B15/145—Frames the plough blades being connected to the plough beam for unisono adjustment of the furrow width

Definitions

  • the invention relates to a plow with variable working width.
  • plows of this type which include: - a coupling device on a tractor; - a beam arranged at an angle to the axis of movement provided for the tractor; - plowing bodies to be oriented parallel to this axis of movement, articulated at regular intervals on the beam by means of respective supports also articulated each on a rod so that the four points of articulation of each pair of supports on the beam and on the rod form the corners of an articulated parallelogram; - and connecting means between the coupling device, the beam and the adapted rod, when the orientation of the beam is varied over at least a given range, so that the plowing bodies keep their orientation, and that the variation in the line width is equal to the variation in the width of the first line.
  • the line width of the plow is varied - that is to say the transverse spacing prevailing between two successive plowing bodies - and therefore the working width of the plow, while respecting its operating conditions ment, on the one hand the orientation of the plowing bodies parallel to the axis of movement provided for the tractor, and on the other hand the equality between the line width and the width of the first line, that is to say -to say the transverse spacing prevailing between the first plowing body (the one which is located furthest forward of the plow) and the inner side of the tractor wheel closest to the first body.
  • the connecting means between the coupling device, the beam and the rod of the known plows give satisfaction to the use, but their structure is relatively complex, they therefore have a high manufacturing cost.
  • the invention aims to provide a plow with variable working width, the connection means of which have a simpler structure and easier to manufacture.
  • the connection means between the coupling device, the beam and the rod include: - a first arm articulated at a first end on the coupling device and at a second end on the beam; - Control means of the first arm and of the beam, to rotate the first arm around its first end while rotating the beam in the opposite direction around its second end, by the quantity required; - A linkage between the coupling device and the support of one of the plowing bodies, adapted to keep this support parallel to itself in said given range.
  • the plowing bodies therefore remain parallel to the axis of movement provided for the tractor, since they remain parallel to themselves thanks to the cooperation in parallelogram of the supports with the beam and the rod.
  • the width of the first line and the line width would vary in the same direction, but from too much for the line width and not enough for the first line width.
  • the reverse rotation that the invention proposes for the beam around the first arm varies the width of the first line in the same direction, but varies the width of the line in the opposite direction, so that it is possible to obtain equality. sought between the variations of these widths by performing this reverse rotation according to the appropriate quantity thanks to the control means of the first arm and of the beam.
  • levers hinged together include for example, according to an embodiment which gives good results: - an adjustable length adjustable arm articulated at a first end on the coupling device at a point distinct from the point of articulation of the first arm, and at a second end on the first arm; - a second arm recessed axially to the adjustment arm, extending it beyond said first end; - a third arm embedded transversely to the beam; - And a fourth arm articulated at a first end on the second arm and at a second end on the third arm.
  • the plow shown in the figures comprises a coupling device 1 comprising an inverted tee 2 for coupling at three points to the tractor, the location of the rear wheels 7A and 7B of which has been shown.
  • a pivot 3 is mounted for rotation about an axis intended to be superimposed on the axis of movement 4 provided for the tractor, this pivot being controlled by a device provided for making it perform half-turns. turns to turn the plow before we reverse the direction of movement of the tractor, in a well known manner.
  • the beam 5 is arranged at an angle to the axis 4 and carries five plowing bodies of which only the first three 6A to 6C are shown in the figures.
  • the plow is correctly adjusted, since the plowing bodies are parallel to the axis 4 and the line width L - that is to say the transverse spacing between two successive plowing bodies - is equal to the width of the first line L1, that is to say the transverse spacing between the first plowing body 6A and the inner flank of the rear wheel closest to the tractor, here 7B.
  • the five plowing bodies are articulated at regular intervals on the beam 5 by means of respective supports, 8A to 8C for the bodies 6A to 6C.
  • Each of the supports is also articulated on a rod 9, so that the four points of articulation of each pair of supports on the beam and on the rod form the corners of an articulated parallelogram, which means that the plowing bodies remain parallel to each other.
  • this plow comprises as connecting means between the coupling device, the beam and the rod: - A first arm 10 articulated at a first end at A on the coupling device 1 - and more precisely on the pivot 3 - and at a second end at B on the beam 5; - Control means of the first arm 10 and of the beam 5, to rotate the first arm around A while rotating the beam in the opposite direction around B, by the amount required. - A linkage between the coupling device 1 and the support 8B of the second plowing body 6B, adapted to keep this support parallel to itself when the orientation of the beam is varied within a given range.
  • control means of the first arm 10 and of the beam 4 comprise an adjustment arm 11 with adjustable length articulated at a first end on the coupling device 1 at a point F distinct from the point A, and at a second G-shaped end on the first arm 10; a second arm 12 axially embedded in the adjustment arm 11, extending it beyond said first end; a third arm 13 embedded transversely to the beam 5; and a fourth arm 14 articulated at a first end at E on the second arm 12 and at a second end at H on the third arm 13.
  • the articulation points A and B of the first arm 10 are aligned with the articulation point C of the second plowing body 6B on the beam, the articulation point B of the first arm on the beam 5 being located substantially equal distance from point A and point C;
  • the triangle having for its vertices the points AC and the point D of articulation of the first plowing body on the beam, is a right triangle at point D and making an angle of 30 ° at point C;
  • the articulation points E, F and G of the assembly formed by the adjustment arm 11 and the second arm 12 are aligned with point C, the articulation point G of the adjustment arm on the first arm 10 being located approximately equidistant from the point of articulation E of the second and fourth arms and from the point of ar ticulation C;
  • the triangle having for points the points of articulation C, D and E is a right triangle at point D and making an angle of 40 ° at point C;
  • the linkage between the coupling device 1 and the support of one of the plowing bodies comprises a rigid lever 15 articulated at a first end in J on the coupling device and at a second end in I on the support.
  • This support is that of the second plowing body 8B and the quadrilateral having the points of articulation C, I, J, A, is substantially a parallelogram.
  • Figure 3 shows the same plow hitched behind the same tractor, but adjusted for a larger line width L ′.
  • the length of the adjustment arm 11 has simply been shortened, that is to say, in this case, that the rod of the hydraulic cylinder with which this arm is made.
  • the transverse position occupied by the first and second plowing bodies under the conditions of FIG. 1 are indicated respectively by the dashed lines 16 and 17, as well as the variation of the length of first line ⁇ L1 which corresponds to the transverse displacement of the first plowing body, and the transverse displacement of the second plowing body ⁇ L2.
  • the beam 5 would have simply rotated around point A, points C and D would have moved in the same direction, and the displacement of point D would be less than twice that of point C, but thanks to the rotation carried out in the opposite direction around point B, the displacement of point D has an additional variation in the direction of an increase while the displacement of point C has an additional variation in the direction of a decrease , which made it possible for the lateral displacement of point D to be equal to half of the lateral displacement of point C.
  • the adjusting arm 11 has turned around A by 35.5 ° and the beam by 23 ° around point B, so that the beam has had a variation in its inclination by 12.5 °.
  • the fourth arm 14 is adjustable in length to allow the use of the plow on tractors with differences in the spacing of their rear wheels.
  • the adjustment is obtained by acting on the adjustment arm 11 then on the fourth arm 14 to give the correct angle to the beam 5. We can then vary the working width of the plow, it will remain adjusted.
  • the linkage of this variant comprising a first, a second and a third lever 18 to 20, articulated together in L at a first of their ends , the first lever 18 being articulated at a second end in K on the coupling device 1, the second lever at the point of articulation B and the third lever on the support 8B of the second plowing body at a point M; the quadrilateral having vertices points A, K, L and B being a parallelogram, as well as the quadrilateral having for points the points of articulation C, M, L and B.
  • Rigorous support is thus obtained for the lever 19 and the straight line passing through the articulation points M and C parallel to the right passing through the articulation points A and K, that is to say a strict maintenance of the bodies plowing parallel to the axis 4.
  • the examples of plows illustrated comprise a depth adjustment wheel 21 mounted on a support 22 articulated on the beam 5 and on the rod 9, which means that this wheel also remains parallel to axis 4 and when the inclination of the beam 5 is varied.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)
EP89400574A 1988-03-02 1989-03-01 Pflug mit Schnittbreitenverstelleinrichtung Withdrawn EP0333545A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802627 1988-03-02
FR8802627A FR2627931B1 (fr) 1988-03-02 1988-03-02 Charrue a largeur de travail variable

Publications (1)

Publication Number Publication Date
EP0333545A1 true EP0333545A1 (de) 1989-09-20

Family

ID=9363826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400574A Withdrawn EP0333545A1 (de) 1988-03-02 1989-03-01 Pflug mit Schnittbreitenverstelleinrichtung

Country Status (2)

Country Link
EP (1) EP0333545A1 (de)
FR (1) FR2627931B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0836798A1 (de) * 1996-10-18 1998-04-22 Kuhn-Huard S.A. Pflug
GB2302493B (en) * 1995-06-22 1999-03-03 Kverneland Klepp As Single furrow plough

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740293B1 (fr) * 1995-10-25 1998-01-16 Naud Expl Charrues Charrue reversible portee a largeur variable avec dispositif de recentrage du bati sur l'axe de retournement
FR2754970B1 (fr) * 1996-10-25 1999-02-05 Naud Expl Charrues Charrue multisocs a largeur de travail reglable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122464A (en) * 1982-06-28 1984-01-18 Kverneland As An agricultural implement
DE3345231C1 (de) * 1983-12-14 1985-03-21 Xaver Fendt & Co, 8952 Marktoberdorf Regelverfahren und Vorrichtungen zum Betreiben eines aus einem Ackerschlepper und einem Pflug bestehenden Gespanns
GB2172782A (en) * 1985-03-19 1986-10-01 Oeverums Bruk Ab Plough
EP0200489A2 (de) * 1985-04-24 1986-11-05 Ransomes Sims & Jefferies, Public Limited Company Drehpflug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122464A (en) * 1982-06-28 1984-01-18 Kverneland As An agricultural implement
DE3345231C1 (de) * 1983-12-14 1985-03-21 Xaver Fendt & Co, 8952 Marktoberdorf Regelverfahren und Vorrichtungen zum Betreiben eines aus einem Ackerschlepper und einem Pflug bestehenden Gespanns
GB2172782A (en) * 1985-03-19 1986-10-01 Oeverums Bruk Ab Plough
EP0200489A2 (de) * 1985-04-24 1986-11-05 Ransomes Sims & Jefferies, Public Limited Company Drehpflug

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302493B (en) * 1995-06-22 1999-03-03 Kverneland Klepp As Single furrow plough
EP0836798A1 (de) * 1996-10-18 1998-04-22 Kuhn-Huard S.A. Pflug
FR2754670A1 (fr) * 1996-10-18 1998-04-24 Kuhn Huard Sa Charrue comportant un arriere-train lie a un avant-train au moyen d'un dispositif de liaison perfectionne
EP1205095A3 (de) * 1996-10-18 2002-07-17 Kuhn-Huard S.A. Pflug
EP1216606A3 (de) * 1996-10-18 2002-07-17 Kuhn-Huard S.A. Pflug
EP1205096A3 (de) * 1996-10-18 2002-07-17 Kuhn-Huard S.A. Pflug

Also Published As

Publication number Publication date
FR2627931B1 (fr) 1991-09-06
FR2627931A1 (fr) 1989-09-08

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